Excitation Control for

a Synchronous

GeneratorTeam Three Phase

JACOB NELSON

CARLOS VALDEZ

KERRI MCGINTY

GARY WANG

Project Summary

The goal of this project is to establish a working

excitation control system for the synchronous

generator in the BEL Power Lab.

Three Phase will also develop a condensed

manual for quick operation of said control system

and an informative document on the theory or

operation for the system.

Goals

Project Summary

Build, Assemble, or Purchase

Chose to Purchase

Basler, Reivax, or ABB

Chose ABB

Design Choices

Project Summary

FeaturesABB

Unitrol-1020

Basler

DECS-250

Reivax

RTX Energy DRV01

Maximum Input Voltage 300 Vac 277 Vac 220 Vac

Exciter Output Up to 20 AdcUp to 15 Adc

Up to 125 VdcUp to 20 Adc

Short Term OverloadUp to 40 Adc

10 seconds

Up to 300 Vdc

Up to 30 Adc

10 seconds

Up to 40 Adc

30 seconds

VR accuracy ±0.20% ±0.25% ±0.10%

Digital I/O12 Inputs

8 Outputs

16 Inputs

11 Outputs

29 Inputs

15 Outputs

PT

CT

3 PT inputs: 0 to 300 V

1 CT input: 1 or 5 A

3 PT inputs: O to 200 V

3 CT inputs: 1 or 5 A

3 PT Inputs: 0 to 200 V

3 CT Inputs: 5 A

Operating Temperature -40 to 70 °C -40 to 70 °C 0 to 70 °C

Size 6.69” x 11.89” x 6.69” 8.08” x 8.62” x 12” 11.8” x 23.6” x 31.5”

CostBetween

$5,000 and $6,000

Between

$4,000 and $5,000

Between

$20,000 and $30,000

Unitrol-1020

ABB Ship Date: 3/9/2015

Estimated Arrival Date: 3/12/2015

Information

Details

Variable Frequency Drive (VFD)

Induction Machine

Synchronous Generator

Generator Circuit Breaker (GCB)

Static Exciter (Unitrol-1020)

Current Transformer for armature current sensing

System Components

Details

External Capacitor

This table is an

excerpt from page

80 of the ABB users

manual. This table

shows the need for

an external

capacitor for a

given current and

temperature range.

DetailsConnection Diagram

Details

Offline tests

Manual Control Mode Verification

Over/Under excitation protection

Online tests

Automatic Voltage Regulation Verification

Fault Ride Through

Testing Plans

Budget

The funds allocated

to this project total

$6,000.00.

Projected Expenses

Component Price

ABB Unitrol-1020 $4,000.00

(Projected) Lab Cart $90.00

(Projected) Cables $30.00

(Projected) Connecters $20.00

(Projected) Expo Poster $100.00

Total $4,240.00

Schedule

Important dates

Task Date

Design Review February 17

Snapshot 3 March 11

Receive Exciter March 12

Engineering Design Expo May 1

Important Deadlines

Task Date

Final Draft: Operation Manual February 25

Finish Commissioning March 20

Final Draft: Training Guide March 12

Final Draft: Test Procedure March 20

Finish RTDS Testing March 28

Finish Functionality Testing April 1

Order Expo Poster April 17

Closing

Questions?